نتایج جستجو برای: 015 gr doses of nanoparticles
تعداد نتایج: 21184069 فیلتر نتایج به سال:
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
Introduction: Since silver nanoparticles have harmful effects on the body and in addition to extensive applications in technology, The present study aimed to evaluate the Anxiety and tissue of hippocampus of rats treated with silver nanoparticles were performed Materials and Methods: In this experimental study, 40 adult male Wistar rats weighing 250-200 gr (5-6 months) in 4 groups o...
We reported a facile two-step electrochemical-chemical approach for in situ growth of nickel sulfide and graphene counter electrode (CE) decorated with silver nanoparticles (signed NiS/Gr-Ag) and served in dye-sensitized solar cells (DSSCs). Under optimum conditions, the DSSC achieved a remarkable power conversion efficiency of 8.36 % assembled with the NiS/Gr-Ag CE, much higher than that based...
Background and purpose: Nanotechnology researchers have identified a wide range of nanoparticle uses that may have an important role in medicine, prevention and treatment of diseases. Paucity of information on toxicity of silver nanoparticles made the authors to evaluate the effect of silver nanoparticles on the enzyme creatine phosphate kinase. Materials and methods: In this study, 40 adult m...
Graphene (GR) based noble metal composites such as Pt–GR and Au–GR were synthesized for sensitive glucose biosensors. Aerosol spray pyrolysis (ASP) was employed to synthesize the noble metal nanoparticles–GR composites using a colloidal mixture of GO and noble metal precursor (H2PtCl6 6H2O and AuCl4 3H2O). The morphology of noble metal–GR composites was generally the shape of a crumpled paper b...
Aim: Study was undertaken to evaluate the effect of Punica granatum L. on Gentamicin-induced renal failure in rats. Materials and methods: Gr. I rats served as normal, received 0.5 ml of 5% Tween-80 in distilled water, Gr. II was injected with Gentamicin (100 mg/kg, IP), Gr. III was injected with Gentamicin and selenium (2 mg/kg, IP), and Gr. IV-IX were given orally Punica granatum fruit chloro...
Ultrafine WO3 nanoparticles were synthesized by nanocasting route, using mesoporous SiO2 as a template. BET measurements showed a specific surface area of 700 m 2/gr for synthesized SiO2, while after impregnation and template removal, this area was reduced to 43 m 2/gr for WO3 nanoparticles. HRTEM results showed single crystalline nanoparticles with average particle size of about 5 nm possessin...
for investigating of o. aegyptiaca control in tomato with sulfosulfuron and glyphosate and evaluating the efficacy, dose and time of application, some studies were conducted in 2011 at aarhus university of denmark. at first, the efficacy of sulfosulfuron (0.029, 0.147, 0.735, 3.676 and 18.378 mg per lit) and glyphosate (0.023, 0.117, 0.587, 2.935 and 14.676 µl per lit) on egyptian broomrape see...
iron oxide nanoparticles were synthesized by coprecipitation method using ammonia as precipitation agent. most researchers usually add ammonia into the iron salt solution but in this work the salt solution drop wise has been added to the ammonia and the new obtained results were compared with those of other researches. magnetic properties of nanoparticles were measured by vsm. the effect of rea...
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